Open AccessProduct Soap from Waste Cooking Oil
Author(s) -
Weixin Li,
Rui Guan,
Xiaoyue Yuan,
Haiyang Wang,
Shuqi Zheng,
Lu Liu,
Xiangyun Chen
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/510/4/042038
Subject(s) - saponification , phosphoric acid , cooking oil , chemistry , moisture , waste management , soap , raw material , pulp and paper industry , organic chemistry , engineering , catalysis , world wide web , computer science , biodiesel
Waste cooking oil(WCO) is a good candidate as a material to make soap. It is typically cheaper than other oils. In this study, we have investigated the operation of produced soap from waste cooking oil. Phosphoric acid-hydration was provided for WCO degumming. The operating temperatures is 60°C, phosphoric acid concentration is 2% and 4% content of moisture is the optimum technology of degumming. The most favorable decoloring agent is activated clay, WCO and activated clay ratio of 100:5 at 70°C with 30 min treated time. The optimal technology of saponification is that the mass ratio of NaOH and WCO is 0.3:1, saponification temperature is 100°C and the concentration of NaOH is 30%.